EDIT

// $Id$

/**

* Copyright (C) 2007 EDIT

* European Distributed Institute of Taxonomy 

* http://www.e-taxonomy.eu

* 

* The contents of this file are subject to the Mozilla Public License Version 1.1

* See LICENSE.TXT at the top of this package for the full license terms.

*/

package eu.etaxonomy.taxeditor.store.datasource.wizard;

import java.util.ArrayList;

import org.eclipse.jface.wizard.Wizard;

import org.eclipse.jface.wizard.WizardPage;

import org.eclipse.swt.SWT;

import org.eclipse.swt.events.KeyEvent;

import org.eclipse.swt.events.KeyListener;

import org.eclipse.swt.events.SelectionAdapter;

import org.eclipse.swt.events.SelectionEvent;

import org.eclipse.swt.layout.GridData;

import org.eclipse.swt.layout.GridLayout;

import org.eclipse.swt.widgets.Combo;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Label;

import org.eclipse.swt.widgets.Text;

import eu.etaxonomy.cdm.database.DatabaseTypeEnum;

import eu.etaxonomy.cdm.database.ICdmDataSource;

/**

 * @author n.hoffmann

 * @created 18.05.2009

 * @version 1.0

 */

public class CdmDataSourceWizardPage extends WizardPage implements KeyListener{

	private ArrayList<DatabaseTypeEnum> databaseTypes;

	private Text datasourceNameText;

	private Combo databaseTypeCombo;

	private Composite composite;

	private Composite editDatasourceComposite;

	private ICdmDataSource dataSource;

	protected CdmDataSourceWizardPage(ICdmDataSource dataSource) {

		super("DataSourceWizardPage");

		this.dataSource = dataSource;

		String pageName = dataSource == null ? "Create New Datasource" : "Edit Existing Datasource";

		setTitle(pageName);

	}

	/* (non-Javadoc)

	 * @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite)

	 */

	public void createControl(Composite parent) {

		// Create top-level composite 

		composite = new Composite(parent, SWT.NONE);

		GridLayout gridLayout = new GridLayout();

		gridLayout.numColumns = 1;

		composite.setLayout(gridLayout);

		// Create editDatasourceComposite to display a dataSource's name and type

		editDatasourceComposite = new Composite(composite, SWT.NONE);

		GridData datasourceGridData = new GridData(SWT.FILL, SWT.TOP, true, true);

		editDatasourceComposite.setLayoutData(datasourceGridData);

		GridLayout datasourceLayout = new GridLayout();

		datasourceLayout.numColumns = 2;

		editDatasourceComposite.setLayout(datasourceLayout);

		// Create label and input for dataSource name

		Label datasourceNameLabel = new Label(editDatasourceComposite, SWT.NONE);

		datasourceNameLabel.setText("Datasource Name:");

		datasourceNameText = new Text(editDatasourceComposite, SWT.BORDER);

		datasourceNameText.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));

		datasourceNameText.addKeyListener(this);

		// Create label and dropdown for database type		

		Label databaseTypeLabel = new Label(editDatasourceComposite, SWT.NONE);

		databaseTypeLabel.setText("Database Type:");

		databaseTypeCombo = new Combo(editDatasourceComposite, SWT.BORDER);

		GridData comboLayout = new GridData(SWT.FILL, SWT.CENTER, false, false);

		databaseTypeCombo.setLayoutData(comboLayout);

		populateComboBoxItems();	

		// Create listener to display database type-specific config options

		databaseTypeCombo.addSelectionListener(new SelectionAdapter() {

			public void widgetSelected(SelectionEvent e) {

				// Get database type at the selected index

				DatabaseTypeEnum type = databaseTypes.get(databaseTypeCombo.getSelectionIndex());

				((CdmDataSourceWizard) getWizard()).setDatabaseType(type);

				addDatabasePage(type);

			}

		});

		// make the composite the wizard pages control

		setControl(composite);

	}

	private void populateComboBoxItems() {

		// Init DB types

		if (databaseTypes == null) {

			databaseTypes = new ArrayList<DatabaseTypeEnum>();

		}

		// Add types to the type drop-down and to the types collection

		for (DatabaseTypeEnum type : DatabaseTypeEnum.getAllTypes()) {

			// FIXME right now we filter supported types

			if(type.equals(DatabaseTypeEnum.MySQL)

				|| type.equals(DatabaseTypeEnum.H2)){

				databaseTypeCombo.add(type.getName());

				databaseTypes.add(type);

			}

		}

	}

	/**

	 * @param type

	 */

	private void addDatabasePage(DatabaseTypeEnum type) {

		// add credentials wizard page according to selection

		Wizard wizard = (Wizard) getWizard();

		WizardPage wizardPage = null;

		if(type == DatabaseTypeEnum.H2){

			wizardPage = new CdmDataSourceH2WizardPage(dataSource);

		}else if(type == DatabaseTypeEnum.MySQL){

			wizardPage = new CdmDataSourceMySQLWizardPage(dataSource);

		}

		wizard.addPage(wizardPage);

		getContainer().updateButtons();

	}

	/* (non-Javadoc)

	 * @see org.eclipse.swt.events.KeyListener#keyPressed(org.eclipse.swt.events.KeyEvent)

	 */

	public void keyPressed(KeyEvent e) {}

	/* (non-Javadoc)

	 * @see org.eclipse.swt.events.KeyListener#keyReleased(org.eclipse.swt.events.KeyEvent)

	 */

	public void keyReleased(KeyEvent e) {

		((CdmDataSourceWizard) getWizard()).setDataSourceName(datasourceNameText.getText());

	}

}